COMPSCI 345 / SOFTENG 350
Exam Review 2013Assoc Prof Beryl Plimmer
Prof Jim Warren
Exam Format
• 20 x 1 mark ‘fill in the gap’ questions (5 from Jim, 15 from Beryl)
• 30 marks longer answer questions from Jim• 60 marks longer answer questions from Beryl
• Bring a few pens and a ruler, you may have to do some design work.
Exam review
• Review the learning objectives• Look for key terminology and definitions• Remember what was applied in assignments
and tutorials• Look for techniques that could form the basis
for the high-point exam questions!
Jim’s section
Nielsen’s Heuristics
1. Visibility of System Status2. Match between System and the Real World3. User Control and Freedom4. Consistency and Standards5. Error Prevention6. Recognition Rather Than Recall7. Flexibility and Efficiency of Use8. Aesthetic and Minimalist Design9. Help Users to Recognise, Diagnose, and Recover from Errors10. Help and Documentation
Usability Evaluations 5
L2
Fitts’ Law
• Fitts’ Law is the classic performance measure.– Time to target depends on target width (W) and
distance to move pointer (D) (see tutorial exercise)
– It is a very valuable measure for designing • Control size and location• Its also fun to play with!
Usability Evaluations 6
1
2
3
L2
L4: Usability testing – planning & reporting
• Be able to develop usability testing plans• Be able to write usability test reports• Understand the nature of human research
ethics requirements when conducting studies on humans
Usability Evaluations 7
1-8
Execution/Evaluation Action Cycle (EEC)
• Seven Stages of Action
L5
1-9
Conceptual Design – Card Sort
• Result of a card sort
L6
Persona example
10© http://chopsticker.com/
L6
Scenario example
11
Accessing Design Files from a remote serverPACT AnalysisPeople: Design engineer on a projectActivities: Using the DMS (document management system) to identify released
document set for a design partContext: Remote site work environment, independently managed work activityTechnology: Mobile interface to previous PC-based DMSScenarioEngineer is on site discussing construction of ‘Bridge D’ ‘Deck’ with contractors.
Doesn’t believe that they have all the documentation and needs to check their set of documents against the master set. Uses mobile device to access DMS and authenticates with the system. Selects project ‘Bridge D’ and design part ‘Deck’. Requests the set of released documents to be identified. Works through the identified set of documents checking document codes, release date, and versions with the contractor. Identifies no anomalies with the contractor’s set and completes programme task.
L6
1-12
Conceptual Design – Scenarios, Flowcharts, and Cognitive Walkthroughs
• Flowcharts can be: – Simple network diagrams that identify the pages
of a Web site and the navigational links between them
– Sophisticated diagrams that capture conditional junctures and computational processes
L5
1-13
Physical Design - Low-fidelity prototypes
• The three main criteria for low-fidelity prototypes:– Easy and inexpensive to make.– Flexible enough to be constantly changed and rearranged.– Complete enough to yield useful feedback about specific
design questions.
L7
1-14
Physical Design Cont. - Wireframes
Wireframes help to create template layouts that can be used to impose a consistent structure throughout the interface
L8
1-15
Framework for Design Principles
• Provides a framework for thinking about design principles in terms of interaction
L9
1-16
Principles of Interaction Design
• Effectiveness/Usefulness– Utility– Safety– Flexibility – Stability
• Efficiency/Usability– Simplicity – Memorability– Predictability– Visibility
L0
1-17
Other Principles of Perception - Screen Complexity
• More practical (approximate) way to calculate the measure of complexity for a particular screen, do the following:
1. Count the number of elements2. Count the number of columns (horizontal alignment
points)3. Count the number of rows (vertical alignment points)4. Sum up these three counts for a complexity score
L10
Optimal Usability guest lecture
• To see how the concepts and techniques from our lectures are applied by a leading usability service organisation
1-19
L12: Discovery
• To develop a set of skills for systematic analysis of a problem domain to discover HCI issues and requirements
• To understand perspectives on data collection including types of stakeholders
• To be able to collect data by interviews, focus groups and questionnaires
Orion Health guest lecture
• To appreciate the emphasis on user experience design by one of our top employers of new computing graduates
21
Refined HTA for making teaL14
1-22
Interpretation – Use Cases
Use case diagram of “schedule a meeting” process.
Notice we use a stickman symbol for the equipment!
L14
Lesson 2: Show name, the right name (aka, don’t kill the patient: type 1)
Patient full name, age/dob, and gender Ideally, patient photo
Sub-window (often in HTML) with clinical details
Don’t let the subwindow navigate to a different patient without refreshing the main window
Don’t let the main window navigate to a different patient without refreshing the subwindow
Navigation controls
From Jim’s lecture of Health and HCI
Beryl’s Section
Major Themes
Visual Interface
Other Interaction modalities
Human sensory/motor system
HCI Research
Human Sensory/Motor systems
• Running through this part of the course were high level ideas of human– Memory and processing– Sight– Hearing– Smell– Touch and kinaesthetic
Visual Interface
• Principles of visual aesthetics
• Understand and describe the basics of visual interface design
• Be able to critique and interface in a methodical manner
• Be able to design an interface in a methodical manner
Visual Interface
• Text and Fonts • Colours and Images• Grouping• Lines and borders• Forms and controls
Other Modalities
• Sound – input and output
• Pens and other tangibles
• Touch and Haptics• Smell • Brain Computer Interaction
HCI Research
• Pen and Tangible
• Eye tracking and eye gaze
• UI customization
Guest lecture
• Accessibility for visually impaired
Thank you
And good luck!